Wrong X and Y position after Auto leveling

Hi.. I have a Sunhokey Prusa I3 2015 Model and marlin firmware.
I just enabled Auto leveling with inductive sensor.
I set auto leveling grid for 4 corners of the bed.
After I send the G28 command the printer will home X and Y axis but while homing Z axis for first time the Y axis will move about 10mm.
During the last point the x carriage will hit the x axis and it shows X position as -7.8 and Y position as normally 180.
Now when I try to move Y axis, it will not move more than 20mm. And while I move Y axis the X axis will move about 7.8 mm.
I had set the homing grid as:
Front: 0
Back : 180
Left : 0
Right : 167

The x offset of the sensor from extruder is set to 28mm
And y offset to 0.

The homing grid points are set to 2.

Please help.

Look in configuration.h and setup the locations and bed dimensions to your configuration. are you using min endstops max endstops or both or a mix? If you have trouble figuring it out, you can use the attach function above the edit field to attach the config file. We can have a look at it but we need to know where the end stops are located and if they are min or max endstops.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

I am using only min endstops. I attached the config file as you asked.

You need to set this one to false, you'll need this to be able to move the nozzle to the build plate. It may also fix your X and Y problem.
#define min_software_endstops true // If true, axis won't move to coordinates less than HOME_POS.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

I tried to set it to false as you said.. auto level is working fine but the X axis still offsets to -28

That is as expected right? Since the probe is at +28mm offset, the nozzle needs to go to -28mm to set the probe at 0mm. You could set the Left homing grid to 28, that way it won't go negative.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

Yes now I set the left home grid to 28.
when I run G28 command and then run auto level with G29 offsets still goes to -28.
But when I run "G28 X Y" to home only X and Y axis and then run Auto level with G29 every thing goes well as expected...

It doesn't really matter, if -28 is the point where you want x to be 0, just do a G92 X and it will take that point as 0. Or move X anywhere and make it zero with G92 X. As long as the end steps are used as reference you can set the 0,0,0 point anywhere you want.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

Ok now I got it thanks...

Quote
gurmeet.athwal
Yes now I set the left home grid to 28.
when I run G28 command and then run auto level with G29 offsets still goes to -28.
But when I run "G28 X Y" to home only X and Y axis and then run Auto level with G29 every thing goes well as expected...

It should be
G28 X Y
G29

That way it will home X and Y to 0.
Then do the auto bed leveling.

When i did just a normal G28 it would freeze and say probe out of bed.
MY probe is about "-20 X" and "15 Y"

Quote
xile6

Quote
gurmeet.athwal
Yes now I set the left home grid to 28.
when I run G28 command and then run auto level with G29 offsets still goes to -28.
But when I run "G28 X Y" to home only X and Y axis and then run Auto level with G29 every thing goes well as expected...

It should be
G28 X Y
G29

That way it will home X and Y to 0.
Then do the auto bed leveling.

When i did just a normal G28 it would freeze and say probe out of bed.
MY probe is about "-20 X" and "15 Y"

U r right, however I had to adjust the X and Y location everytime after autoleveling with the G92 command. I read somwhere that its a bug in the marlin firmware.

Quote
xile6
When i did just a normal G28 it would freeze and say probe out of bed.

If you don't home your Z axis you'll get the "Probe out of bed" issue. I need to play with my printer to give you a proper answer but this was my fight with this problem.
Best regards,
Bobby

Quote
BoByS

Quote
xile6
When i did just a normal G28 it would freeze and say probe out of bed.

If you don't home your Z axis you'll get the "Probe out of bed" issue. I need to play with my printer to give you a proper answer but this was my fight with this problem.
Best regards,
Bobby

I dont have a problem with mines.
My gcode is
G28 X Y
G29

It homes X, Y then moves to center of the bed probes Z then does the auto leveling.

I was trying to help "gurmeet.athwal"
By posting how mines work